Which statements about parallel streams are correct? (Choose two.)

A. A parallel stream is always faster than a serial stream.

B. The JVM will automatically apply a parallel stream operation to an arbitrary stream in order to boost performance.

C. A parallel stream synchronizes its operations so that they are atomic.

D. All streams can be converted to a parallel stream.

E. If a stream uses a reduction method, the result will be the same regardless of whether the stream is parallel or serial.

F. Sometimes, a parallel stream will still operate in a single-threaded manner.